org.simantics.district.network.ui/src/org/simantics/district/network/ui/DistrictDiagramViewer.java

   1 package org.simantics.district.network.ui;
   2
   3 import java.awt.Color;
   4 import java.awt.geom.AffineTransform;
   5 import java.util.concurrent.TimeUnit;
   6 import java.util.function.Consumer;
   7 import java.util.function.Supplier;
   8
   9 import org.simantics.datatypes.literal.RGB;
  10 import org.simantics.db.ReadGraph;
  11 import org.simantics.db.Resource;
  12 import org.simantics.db.common.request.UnaryRead;
  13 import org.simantics.db.exception.DatabaseException;
  14 import org.simantics.db.procedure.Listener;
  15 import org.simantics.diagram.ui.DiagramModelHints;
  16 import org.simantics.district.network.DistrictNetworkUtil;
  17 import org.simantics.district.network.ui.participants.DNPointerInteractor;
  18 import org.simantics.district.network.ui.participants.MapRulerPainter;
  19 import org.simantics.g2d.canvas.ICanvasContext;
  20 import org.simantics.g2d.canvas.impl.CanvasContext;
  21 import org.simantics.g2d.diagram.handler.PickRequest.PickFilter;
  22 import org.simantics.g2d.diagram.participant.DelayedBatchElementPainter;
  23 import org.simantics.g2d.diagram.participant.ElementPainter;
  24 import org.simantics.g2d.diagram.participant.Selection;
  25 import org.simantics.g2d.diagram.participant.ZOrderHandler;
  26 import org.simantics.g2d.participant.BackgroundPainter;
  27 import org.simantics.g2d.participant.GridPainter;
  28 import org.simantics.g2d.participant.PanZoomRotateHandler;
  29 import org.simantics.g2d.participant.RenderingQualityInteractor;
  30 import org.simantics.g2d.participant.TransformUtil;
  31 import org.simantics.g2d.participant.ZoomToAreaHandler;
  32 import org.simantics.maps.MapScalingTransform;
  33 import org.simantics.maps.eclipse.MapPainter;
  34 import org.simantics.maps.sg.commands.MapCommands;
  35 import org.simantics.modeling.ui.diagramEditor.DiagramViewer;
  36 import org.simantics.scenegraph.g2d.events.command.CommandEvent;
  37 import org.simantics.scenegraph.g2d.events.command.Commands;
  38 import org.simantics.utils.datastructures.hints.IHintContext;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 public class DistrictDiagramViewer extends DiagramViewer {
  43
  44     @SuppressWarnings("unused")
  45         private static final Logger LOGGER = LoggerFactory.getLogger(DistrictDiagramViewer.class);
  46
  47     @Override
  48     protected void addDiagramParticipants(ICanvasContext ctx) {
  49         ctx.add(new ZOrderHandler());
  50         ctx.add(new Selection());
  51         ctx.add(new ElementPainter());
  52         ctx.add(new DNPointerInteractor());
  53
  54         AffineTransform tr = new AffineTransform(MapScalingTransform.INSTANCE);
  55         ctx.add(new MapPainter(tr));
  56
  57         ctx.add(new NetworkDrawingParticipant(tr));
  58     }
  59
  60     protected String getPopupId() {
  61         return "#DistrictDiagramPopup";
  62     }
  63
  64     @Override
  65     public void initializeCanvasContext(CanvasContext ctx) {
  66         super.initializeCanvasContext(ctx);
  67         IHintContext h = ctx.getDefaultHintContext();
  68         h.setHint(PanZoomRotateHandler.KEY_ZOOM_IN_LIMIT, 10000.0);
  69         h.setHint(PanZoomRotateHandler.KEY_ZOOM_OUT_LIMIT, 0.01);
  70         h.setHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE, diagramResource);
  71     }
  72
  73     @Override
  74     protected void addPainterParticipants(ICanvasContext ctx) {
  75         ctx.add(new RenderingQualityInteractor());
  76         ctx.add(new DelayedBatchElementPainter(PickFilter.FILTER_MONITORS, 500, TimeUnit.MILLISECONDS));
  77     }
  78
  79     @Override
  80     protected void addGridRulerBackgroundParticipants(CanvasContext ctx) {
  81         ctx.add(new GridPainter());
  82         ctx.add(new MapRulerPainter());
  83         ctx.add(new BackgroundPainter());
  84     }
  85
  86     protected void addViewManipulationParticipants(CanvasContext ctx) {
  87         // Let's replace with our special util
  88         TransformUtil util = ctx.getAtMostOneItemOfClass(TransformUtil.class);
  89         if (util != null)
  90             ctx.remove(util);
  91         ctx.add(new DistrictTransformUtil());
  92         ctx.add(new DistrictPanZoomRotateHandler());
  93         //ctx.add(new MousePanZoomInteractor());
  94         //ctx.add(new MultitouchPanZoomRotateInteractor());
  95         // ctx.add( new OrientationRestorer() );
  96         ctx.add(new ZoomToAreaHandler());
  97     }
  98
  99     @Override
 100     protected void loadPageSettings(ICanvasContext ctx) {
 101         super.loadPageSettings(ctx);
 102         // this might be the wrong place to start such listening but at least
 103         // super.loadPageSettings() does async-db-operations
 104         setupDrawMapEnabled();
 105         setupBackgroundColor();
 106     }
 107
 108     private void setupDrawMapEnabled() {
 109         sessionContext.getSession().asyncRequest(new DrawMapEnabledRequest(getInputResource()), new DrawMapEnabledListener(
 110                 result -> canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), result ? Commands.MAP_ENABLE : Commands.MAP_DISABLE)),
 111                 () -> DistrictDiagramViewer.this.isDisposed()));
 112     }
 113
 114     private void setupBackgroundColor() {
 115         sessionContext.getSession().asyncRequest(new MapBackgroundColorRequest(getInputResource()), new MapBackgroundColorListener(
 116                 result -> queueBackgroundColorChangeEvent(result),
 117                 () -> DistrictDiagramViewer.this.isDisposed()));
 118     }
 119
 120     private void queueBackgroundColorChangeEvent(RGB.Integer result) {
 121         if (result != null) {
 122             Color backgroundColor = new Color(result.red, result.green, result.blue);
 123             canvasContext.getDefaultHintContext().setHint(MapCommands.KEY_MAP_BACKGROUND_COLOR, backgroundColor);
 124             canvasContext.getEventQueue().queueEvent(new CommandEvent(canvasContext, System.currentTimeMillis(), MapCommands.MAP_BACKGROUND_COLOR_CHANGE));
 125         }
 126     }
 127
 128     private static class DrawMapEnabledRequest extends UnaryRead<Resource, Boolean> {
 129
 130         public DrawMapEnabledRequest(Resource diagram) {
 131             super(diagram);
 132         }
 133
 134         @Override
 135         public Boolean perform(ReadGraph graph) throws DatabaseException {
 136             return DistrictNetworkUtil.drawMapEnabled(graph, parameter);
 137         }
 138     }
 139
 140     private static class DrawMapEnabledListener implements Listener<Boolean> {
 141
 142         private static final Logger LOGGER = LoggerFactory.getLogger(DrawMapEnabledListener.class);
 143
 144         private Consumer<Boolean> callback;
 145         private Supplier<Boolean> isDisposed;
 146
 147         public DrawMapEnabledListener(Consumer<Boolean> callback, Supplier<Boolean> isDisposed) {
 148             this.callback = callback;
 149             this.isDisposed = isDisposed;
 150         }
 151
 152         @Override
 153         public void execute(Boolean result) {
 154             callback.accept(result);
 155         }
 156
 157         @Override
 158         public void exception(Throwable t) {
 159             LOGGER.error("Could not listen if draw map is enabled", t);
 160         }
 161
 162         @Override
 163         public boolean isDisposed() {
 164             return isDisposed.get();
 165         }
 166     }
 167
 168     private static class MapBackgroundColorRequest extends UnaryRead<Resource, RGB.Integer> {
 169
 170         public MapBackgroundColorRequest(Resource diagram) {
 171             super(diagram);
 172         }
 173
 174         @Override
 175         public RGB.Integer perform(ReadGraph graph) throws DatabaseException {
 176             return DistrictNetworkUtil.backgroundColor(graph, parameter);
 177         }
 178     }
 179
 180     private static class MapBackgroundColorListener implements Listener<RGB.Integer> {
 181
 182         private static final Logger LOGGER = LoggerFactory.getLogger(DrawMapEnabledListener.class);
 183
 184         private Consumer<RGB.Integer> callback;
 185         private Supplier<Boolean> isDisposed;
 186
 187         public MapBackgroundColorListener(Consumer<RGB.Integer> callback, Supplier<Boolean> isDisposed) {
 188             this.callback = callback;
 189             this.isDisposed = isDisposed;
 190         }
 191
 192         @Override
 193         public void execute(RGB.Integer result) {
 194             callback.accept(result);
 195         }
 196
 197         @Override
 198         public void exception(Throwable t) {
 199             LOGGER.error("Could not listen map background color", t);
 200         }
 201
 202         @Override
 203         public boolean isDisposed() {
 204             return isDisposed.get();
 205         }
 206     }
 207 }